Oil-bolt



A. 0. RAY.

OIL BOLT.

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amuzwioz ALBERT D. BAY, OF CLEVELAND, OHIO.

OIL-BOLT.

Specification of Letters Patent.

Patented Apr-[13, 1920.

Application filed June 28, 1919. Serial No. 307,475.

To all whom it may concern:

Be it known that I, ALBERT D. RAY, a citizen of the United States, residing at Cleveland, in the countyof Guyahoga and State of Ohio, have invented certain new and use ful Improvements in Oil-Bolts, of which the following is a specification.

This invention relates to oil-bolts, and is an improvement in the oil-bolt disclosed in my Letters Patent No. 1,271,768, dated July 9, 1918. The improvement involves a simple and effective construction and arrangement of parts adapting the bolt to be easily filled with oil and to be securely closed when filled, and a wick holder of special form is also involved which works to advantage in feeding the oil and in seating the wick lon itudinally of the bolt and sub stantially flush with the outer curved surface of the bolt.

In the drawing accompanying this appli cation, Figure 1 is a plan View of the bolt, and Fig. 2 a side view. Fig. 3 is a longitudinal section of the bolt, and Fig. i an enlarged cross section on line 14, Fig. 2. Fig. 5 is a perspective view of the bolt without its wick-holder and spherical cap. Fig. 6 is a perspective view of the wickholder.

The bolt comprises a round cylindrical shank 2 having one end screw-threaded and its opposite end formed with an annular flattened enlargement 3 and a semi-spherical head i. A slot 5 is milled lengthwise in the top side of the bolt, which provides oil chamber, and a round duct or passage 6 extends from one end of this chamber longitudinally through the bolt to and through the top side of the spherical head at. T

an A .11,

filling duct or passage 6 is preferably drilled on reversely-inclined lines to place the entrance 7 and outlet 8 at opposite ends there- 'of above the axis of the bolt, and the angular section 9 midway of the entrance and outlet acts as a baiiie to the movement of the oil if the oil is agitated.

The slot or chamber 5 has a rounded bottom and flat parallel sides. and the top of this slot or chamber is adapted to be closed by a flanged plate or cover 10 which is elongated and shaped at its ends to seat upon the curved bottom, see Fig. 3. Cover plate 10 has a depression or channel 11 extending lengthwise thereof with an opening 12 at each end. and a round straight wick 13 of any suitable material is adapted to occupy or rest within channel 11, and the pendent ends 1 1 of the wick extend through the openings 12 into the oil chamber. The ends 12 may also be tied together to form a loop and prevent displacement or loss of the wick, especially when the bolt is withdrawn from its socket or hole in a shackle or other housing where used. The round wick portion which is exposed outside of the cover plate is adapted to engage the same wall of the opening engaged by the bolt, but because it occupies a depressed seat in the cover plate it will not wedge nor tear when the bolt is introduced or removed, and the depressed seat is also of utility in effecting an uninterrupted feed of the-oil, that is, the round wick will not be compressed at any point throughout its length in use and the oil is free to run or creep along the channel and wick, but inasmuch as the wick practically closes the openings 12 the oil cannot escape too freely.

The escape of oil from the filling passage is also guarded at entrance 7 by a spherically-shaped cap 15 which is secured by a pivot pin 16 to the sides of the semi-spherical head 4, see Figs. 2 and 8. The outer end of head r is recessed, and a round bore 17 is drilled at an angle in the bottom side of the recess to provide a seat for one end of a spiral compression spring 18. The upper end of this spring is socketed within a hollow ofiset 19 in cap .15 and the outer end of this offset is flat andmilled and affords an engaging place to press against the cap and turn it on its pivot pin against the resistance of the spring until the entrance 7 is uncovered sufliciently to introduce oil into the filling passage 6.. Vhen released the cap will snap shut and abut tightly at one edge against the outer flat face 20 of the annular enlargement 3. The cap is a segment of a hollow sphere, and gives the end of the bolt a finished appearance; it is convenient of access and easy to operate; when released will snap shut and stay shut; and when opened its lower inclined edge 21 will limit the opening movement of the cap and the compression of the spring. The ends of the pivot pin 16 may be upset to hold the cap and spring permanently in place upon the bolt, or screws may be used in lieu of a pin.

To facilitate the filling of the bolt with oil and to permit the cap to be pressed back and opened by the spout of an oil can, I provide the cap with a short lip or flange 22 at a point directly opposite the entrance to the filling passage 6 in the bolt.

What I claim is:

1. An oil bolt having a parti-spherical end and an oil chamber with a filling passage extending through said end of the bolt, and a parti-spherical pivoted spring pressed cap adapted to close the entrance to said filling passage.

2. An oil bolt having a rounded end and an oil chamber with a filling passage extending to said end; a sealing cap pivoted to said round end and adapted to close said filling passage, and a spring adapted to close said cap. 4 r

3. An oil bolt having an oil chamber in its side and a spherical end and provided with a filling passage extending between said chamber and end, and a spherical cap adapted to turn upon said spherical end and close the entrance to said filling passage.

4E. An oil bolt having an oil chamber in its side and spherical end and a filling passage having an entrance at one side of said spherical end, a spherlcal cap pivoted upon said spherical end, and a spring covered by said cap and adapted to hold the cap over said entrance.

5. A chambered oil bolt having a spherical end with an oil filling entrance and a spring seat, a spherical cap pivoted to said end, and a coiled compression spring confined between said cap and seat.

6. A chambered oil bolt having an oil filling entrance at one end and bore at an angle adjoining said entrance and provided with a pivoted cap adapted to close said entrance, and a spring in said bore at one side of the pivot for said cap adapted to engage 1 and hold said cap in a closed position.

7. A chambered oil bolt having a rounded end with an oil filling entrance, a rounded cap pivoted to said rounded end having a hollow ofl'set adapted 'to be engaged'to turn the cap on its pivot, and a compression spring seated at one end within said hollow offset and bearing against the bolt.

8. A bolt having an oil chamber in its side, a closure member for said chamber having openings, and a wick extending longitudinally at the outer side of said member and having pendent ends extending through said openings into said chamber.

9. A bolt having an oil chamber in its side, a closure plate for said chamber having a central 'depression longitudinally thereof with an opening at one end thereof, and a wick seated within said depression and extending through said opening into said oil chamber.

10. In an oil bolt having an oil chamber, a closure member for said chamber comprising an elongated plate having openings spaced apart lengthwise of the plate, in combination with a Wick having its opposite ends extending through said openings and its central body portion extending longitudinally at the outer side of said plate.

11. In an oil bolt, a metal plate having a longitudinal channel in one side thereof and openings at each end of said channel, in combination with a round wick seated lengthwise within said channel and having ends extending through said openings and tied together and providing a pendent loop on the opposite side of said plate.

12. An oil bolt having a chamber with a filling passage extending through one end of the bolt and a pivoted spring-pressed cap adapted to close the entrance to said filling passage and provided with a lip opposite said entrance.

Signed at Cleveland, in the county of Cuyahoga, and State of Ohio, this 26th day of June, 1919.

ALBERT D. RAY. 

